I see how other players slide instead of walking, it only happens with other players in multiplayer, in my camera my character makes the animation walk correctly

Mod List:
dynamiclightsreforged-1.18.2_v1.3.3.jar
YungsBetterDungeons-1.18.2-Forge-2.1.0.jar
YungsBetterWitchHuts-1.18.2-Forge-1.0.1.jar
majruszs-difficulty-1.18.2-1.4.4.jar
DoggyTalents-1.18.2-2.5.0.jar
Entity_Collision_FPS_Fix-forge-1.18.2-1.0.0.jar
Incendium_v5.0.4.jar
sophisticatedcore-1.18.2-0.5.1.98.jar
rubidium-0.5.3a.jar
Controlling-forge-1.18.2-9.0+22.jar
citadel-1.11.3-1.18.2.jar
alexsmobs-1.18.6.jar
YungsApi-1.18.2-Forge-2.0.8.jar
feature_nbt_deadlock_be_gone_forge-2.0.0+1.18.2.ja
sophisticatedbackpacks-1.18.2-3.18.17.680.jar
guardvillagers-1.18.2.1.4.3.jar
buildinggadgets-3.13.0-build.5+mc1.18.2.jar
bygonenether-1.2.1-1.18.2.jar
balm-3.2.0+0.jar
carryon-1.18.2-1.17.0.8.jar
JustEnoughResources-1.18.2-0.14.1.171.jar
cloth-config-6.2.62-forge.jar
soundphysics-forge-1.18.2-1.0.6.jar
dragonmounts-1.18.2-1.1.4.jar
PrettyPipes-1.12.6.jar
structure_gel-1.18.2-2.4.6.jar
flytre_lib-1.18.2-1.8.2-forge.jar
UndeadExpansion_2.0.4_1.18.2_b.jar
FarmersDelight-1.18.2-1.1.2.jar
Aquamirae 3.2.0 (Forge 1.18.2).jar
braincell-1.18.jar
ironfurnaces-1.18.2-3.3.1.jar
YungsBridges-1.18.2-Forge-2.1.0.jar
wthit-forge-4.13.3.jar
curiouslanterns-1.18.2-1.1.0.jar
dpanvil-1.18.2-3.4.1.jar
curios-forge-1.18.2-5.0.7.1.jar
Cataclysm-0.19.jar
Patchouli-1.18.2-71.1.jar
blockui-1.18.2-0.0.58-ALPHA.jar
EasyPaxelLite1.18.2(FORGE)vs1.0.14.jar
YungsExtras-1.18.2-Forge-2.1.0.jar
elevatorid-1.18.2-1.8.4.jar
YungsBetterStrongholds-1.18.2-Forge-2.1.1.jar
tombstone-7.4.11-1.18.2.jar
EnigmaticLegacy-2.24.1.jar
worldedit-mod-7.2.10.jar
cfm-7.0.0-pre29-1.18.2.jar
architectury-4.9.83-forge.jar
curiouselytra-forge-1.18.1-5.0.1.0.jar
majrusz-library-1.18.2-2.7.3.jar
inventoryessentials-forge-1.18.2-4.0.2.jar
krypton-0.1.10-SNAPSHOT.jar
YungsBetterMineshafts-1.18.2-Forge-2.2.jar
PlayerRevive_FORGE_v2.0.9_mc1.18.2.jar
geckolib-forge-1.18-3.0.36.jar
EnchantingInfuser-v3.3.2-1.18.2-Forge.jar
DripSounds-1.18-0.3.0.jar
clienttweaks-forge-1.18.1-7.1.0.jar
trashslot-forge-1.18.1-11.0.2.jar
minecraft-comes-alive-7.3.20+1.18.2-universal.jar
Barbarians-1.18.2-1.0.5.jar
EasyMagic-v3.3.0-1.18.2-Forge.jar
jei-1.18.2-9.7.1.255.jar
JEIEnchantmentInfo-1.17.1-2.0.0.jar
the-conjurer-1.18.2-1.1.1.jar
caelus-forge-1.18.1-3.0.0.2.jar
Paxi-1.18.2-Forge-2.0.jar
waystones-forge-1.18.2-10.1.0.jar
EpicFight-18.3.3-beta.jar
Clumps-forge-1.18.2-8.0.0+15.jar
journeymap-1.18.2-5.8.5-forge.jar
dual_riders-1.18.2-1.1.1-forge.jar
comforts-forge-1.18.2-5.0.0.4.jar
artifacts-1.18.2-4.0.7.jar
Serene Seasons-1.18.2-7.0.0.13.jar
configured-1.5.4-1.18.2.jar
badpackets-forge-0.1.2.jar
BadMobs-1.18.2-13.01.jar
Obscuria's Tooltips 1.4.1 (1.18.2).jar
snowundertrees-1.18.2-1.2.1.jar
lazydfu-1.0-1.18+.jar
YungsBetterDesertTemples-1.18.2-Forge-1.3.1.jar
walljump-forge-1.18.1-1.3.7.jar
blueprint-1.18.2-5.4.3.jar
savage_and_ravage-1.18.2-4.0.0.jar
forge-1.18.2-40.1.73-universal.jar
curiouslights-forge-1.2.0+1.18.2.jar
idas_forge-1.4.1+1.18.2.jar
selene-1.18.2-1.17.9.jar
supplementaries-1.18.2-1.4.12.jar
ironchest-1.18.2-13.1.9.jar
DungeonsArise-1.18.2-2.1.50d-beta.jar
client-1.18.2-20220404.173914-srg.jar
TConstruct-1.18.2-3.5.1.31.jar
sons-of-sins-1.18.2-1.0.9.jar
illuminations-forge-1.18.2-0.0.4.jar
CreativeCore_FORGE_v2.6.15_mc1.18.2.jar
weaponmaster-multi-forge-1.18.1-3.0.3.jar
domum_ornamentum-1.18.2-1.0.50-ALPHA-universal.jar
flywheel-forge-1.18.2-0.6.5.jar
create-1.18.2-0.5.0.d.jar
Mantle-1.18.2-1.9.27.jar
brutalbosses-1.18.2-5.4.jar
polymorph-forge-1.18.2-0.44.jar
AutoRegLib-1.7-53.jar
Quark-3.2-358.jar
DramaticDoors-Forge-1.18.2-2.1.3.jar
entityculling-forge-mc1.18-1.5.1.jar
structurize-1.18.2-1.0.424-ALPHA.jar
multi-piston-1.18.2-1.2.15-ALPHA.jar
minecolonies-1.18.2-1.0.966-RELEASE.jar
HunterIllager-1.18.2-4.0.1.jar
dannys_expansion-1.2.6.jar
creeperoverhaul-1.18.2-1.3.0-forge.jar
ferritecore-4.2.1-forge.jar
PuzzlesLib-v3.3.5-1.18.2-Forge.jar
Obscuria's Essentials 3.2.0 (Forge 1.18.2).jar
expandability-6.0.0.jar
CosmeticArmorReworked-1.18.2-v2.jar
domesticationinnovation-1.4.2-1.18.2.jar

Thanks for your support.

Seems to be happening on lan servers without any mods

Hi

This issue seems to do with changes made in AbstractClientPlayerPatch.java since version 18.3.0.

In the latest version, 18.3.3, player movement is checked to determine the currentLivingMotion.

else if (original.zza != 0.0F || original.xxa != 0.0F) {
	if (original.isShiftKeyDown())
		currentLivingMotion = LivingMotions.SNEAK;
	else if (original.isSprinting())
		currentLivingMotion = LivingMotions.RUN;
	else
		currentLivingMotion = LivingMotions.WALK;
	
	if (original.zza < 0)
		animator.baseLayer.animationPlayer.setReversed(true);
	else 
		animator.baseLayer.animationPlayer.setReversed(false);
	
} else {

It is using original.zza and original.xxa which seems to be only updating for LocalPlayer not AbstractClientPlayer. Hence you don't notice the issue with a single player.

Versions prior to 18.3.0 used original.animationSpeed to determine the currentLivingMotion.

I believe the change was made to call the setReversed() method depending on the movement direction.
I don't write mods so I don't know what alternative methods are available to check the same condition but I'm hoping this could help to resolve the issue.

Fixed in 18.3.4